For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningWaterleak Test Preparation
GM vehicles are designed to operate under normal environmental
conditions.
The design criteria for sealing materials and components takes into
consideration the sealing forces required to withstand the natural
elements. These specifications cannot take into consideration any artificial ...
Rear Vision Camera (RVC)
This vehicle may have the RVC system. Read this entire section before using it.
The RVC system can assist the driver when backing up by displaying a view of
the area behind the vehicle.
WARNING
The RVC system does not display children, pedestrians, bicyclists, animals,
or any other object loc ...
Instrument Panel Accessory Bezel Replacement
Preliminary Procedure
Remove transmission control cover. Refer to Automatic or Manual Transmission
Control Lever Trim Cover Replacement.
Instrument Panel Accessory Bezel Screw (Qty: 4)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2.5 N·m (23 lb in).
Instrume ...